Creator 5 migration

We're new to Zoho Creator. Seems very good for our needs. We've done a great deal of work and were surprised to see we're already being moved to a new platform.

Of course, things change and we do understand. Reading the support information about migrating to the new version, it mostly looks like front end changes, all fine.

Would you please tell us the significant changes in the new version that might be challenging for migration of existing applications? What areas should we look at most closely? Your guide mentions " Deprecated features: Features in the current version that are not available in Creator 5 and their substitutes", but I have not been able to find this list. Could you please provide a list of the deprecated features?

The videos for each feature are a little cumbersome. A list of the key changes would be a big help.

Thanks!